Identifying Turbo

[wild streak]

I purchased a turbo a couple of months ago for my SR the guy told me it was a gt28rs but I just recently started looking at it a lot and it looks slightly different than the gt28rs I went to Turbobygarrett.com and I was trying to compare mine to theirs The turbo I have has Compressor A/R .70 and Turbine of .86, but none of the gt28rs on the site have a compressor A/R of .70, And the turbo I have has a costumed made actuator bracket and its an HKS actuator so it makes me think it didn't come with an actuator, and all the gt28rs came with actuators on that site. to me this turbo looks like GT2876r it has all the same writing but im not for sure can someone help me identify it. I only gave a little over 300 for it in like new condition